chore: Include completions in the new cask

Author: davidolrik

.goreleaser.yaml

@@ -42,7 +42,8 @@ homebrew_casks:
 archives:
   - formats: [tar.gz]
     files:
-      - completions/*
+      - src: "./completions/*"
+        dst: completions
     # this name template makes the OS and Arch compatible with the results of `uname`.
     name_template: >-
       {{ .ProjectName }}_